[xml] behaviour of SAX "characters" callback

["Vladimir F." <faidenv logica com>]

Hi Guys,

Sorry, it looks big, but anyway,
I want to address the question about SAX parser behaviour.
(the question itself is at the end of this mail).

There is "characters" callback (or handler) function in  
xmlSAXHandler structure. I'm trying to use this handler to 
process some elements of my interest. So as soon as SAX found 
such an element I set "characters" callback to my handler function
expecting that SAX will call this my assigned handler afterwords. 

But I noticed that this handler is called ONLY if the next symbol 
after element is NOT '<'

So, the question is:
is it possible to switch on/off such behaviour of SAX, or 
"characters" callback is designed to be called (if assigned) ONLY for
elements wich have some NON-xml content ?

--------
Example:

suppose we expect <submitReq> element in XML input data stream and 
element handler is like this:

void process_submit(void *cbarg,
                   const xmlChar *data,
                   int data_len)
{
  msg->messgeType = SUBMIT_REQ;
  submit = malloc(sizeof(struct submit));
  ....
  msg->data = submit;

  return;
}

then, as soon as SAX found this element we do like this:

my_parser->sax->characters = process_submit;

But next, SAX will call (or call not) process_submit() depending on
formating of input XML stream, so 

1. process_submit() is not called here (because there is '<' of 'sender'
element after <submitReq>):

<submitReq><sender>a b com</sender></submitReq>

2. but process_submit() is called here (because there is '\r' after 
<submitReq>):

<submitReq>\r\n<sender>a b com</sender>\r\n</submitReq>


--regards,
    Vladimir



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